EP 0007106 B1 19811021 - PROCESS FOR PREPARING POLYCONDENSATION PRODUCTS FROM KETONES AND ALDEHYDES WITH THE HELP OF PHASE TRANSFER CATALYSTS
Title (en)
PROCESS FOR PREPARING POLYCONDENSATION PRODUCTS FROM KETONES AND ALDEHYDES WITH THE HELP OF PHASE TRANSFER CATALYSTS
Publication
Application
Priority
DE 2831613 A 19780719
Abstract (en)
[origin: EP0007106A1] 1. A process for the production of polycondensates of aliphatic or cyclic ketones or mixtures of such ketones, excluding polyfluoroketone, and aliphatic aldehydes in the presence of basic catalysts, characterized in that the polycondensation reaction is carried out in the presence of from 0.005 to 10 mole %, based on the total amount of ketone and aldehyde, of a tetraalkylammonium salt of the general formula see diagramm : EP0007106,P7,F1 where R**1, R**2, R**3 and R**4 may be identical or different and denote alkyls of 1 to 22 carbon atoms or functional groups, such as alkyls having up to 25 carbon atoms and containing hydroxyl, carbamoyl or ether groups, such as methyl, ethyl, propyl, isopropyl, butyl, octyl, dodecyl, C16 H33 -, hydroxypropyl, hydrosyisopropyl or see diagramm : EP0007106,P7,F2 and X**(anion) denotes an anion of an acid, such as l, Cl, Br, SO2 - or CH3 OSO-, of a tetraalkylphosphonium salt of the general formula see diagramm : EP0007106,P7,F3 where R**1, R**2, R**3 and R**4 have the above meanings, or of a crown ether.
IPC 1-7
IPC 8 full level
C08G 6/02 (2006.01)
CPC (source: EP)
C08G 6/02 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB NL SE
DOCDB simple family (publication)
EP 0007106 A1 19800123; EP 0007106 B1 19811021; AT E327 T1 19811115; DE 2831613 A1 19800131; DE 2831613 C2 19820318; DE 2961067 D1 19811224
DOCDB simple family (application)
EP 79102429 A 19790713; AT 79102429 T 19790713; DE 2831613 A 19780719; DE 2961067 T 19790713